Rinding-knife for slicing-machines.



A. R. LUSCHKA AND J. FOLK. RINDING KNIFE FOR SLICING MACHINES.

APPLICATION FILED MAY SI, I9I8.

"rm: COLUMBIA mmoumvn c0., WASHINGTON. D. c.

A. R. LUSH A AND J. FOLK.

BINDING KNIFE FOR SUCH-JG MACHINES.

APPLICATION FILED MAY 31, I918.

3G?! 1-1 g I Patented July 8, 1919.

2 SHEETS SHEET 2.

THE COLUMBIA PLANOGRAPH co WASHINGTON. D., c.

UNITED STATES PATENT orricn.

AUGUST It. LUSCI-IKA AND JOSEPH FOLK, F LAPORTE, INDIANA, ASSIGNORS TOU. S. SLICING MACHINE COMPANY, OF LAPORTE, INDIANA, A CORPORATION OFINDIANA.

BINDING-KNIFE FOR SLICING-MACHINES.

Application filed May 31, 1918.

To all whom it may concern:

Be it known that we, AUGUST R. LUSOHKA and Josnrrr FOLK, citizens of theUnited States, residing at Laporte, in the county of Laporte and Stateof Indiana, have invented certain new and useful Improvements inBinding-Knives for Slicing-Machines, of which the following is aspecification.

This invention has for its object the provision of a device of thecharacter named which shall be of improved construction and operation.

The invention is exemplified in the combination and arrangement of partsshown in the accompanying drawings and described in the followingspecification, and it is more particularly pointed out in the appendedclaims.

In the drawings- Figure 1 is aside elevation of a rinding knifeembodying one form of the present invention and shown in position on aslicing machine.

Fig. 2 is a top plan view of the knife shown in Fig. 1.

Fig. 3 is a horizontal sectional view on line 33 of Fig. 1.

Fig. 4 is a fragmentary sectional view showing details of construction.

Fig. 5 is an elevation looking at the rinding knife and support from theright in Fig. 1.

Fig. 6 is a vertical section on line 6-6 of Fig. 2; and

Fig. 7 is a vertical section on line 7-7 of Fig. 3.

The present invention is intended to be applied to slicing machines ofwell-known construction for the purpose of removing the rind from meatas it is being sliced by such a machine, and is especially useful in theslicing of bacon. In Figs. 1 and 2 of the drawings, the numeral 10designates the frame or base of a slicing machine which is provided withthe usual rotary slicing knife and reciprocating table 11 which travelson guide rods or ways 12, and is reciprocated by a pitman 13 pivotallycon nected to the table 11 by a pin 14. A bracket 15 is rigidly securedto the base 10 by lag screws 16 and carries a split collar 17 at itsupper end which may be clamped by a screw 18 about a pin 19. The pin 19is threaded at 20, and a knurled thumb Specification of Letters Patent.

Patented July 8, 1919.

Serial No. 237,438.

nut 21 is arranged to move up and down upon these threads. A collar 22slides upon the upper portion of the pin 19 and is provided withdownwardly projecting fingers 23 which engage the nut 21 so that thecollar 22 is vertically adjusted upon the pin 19 by the rotation of theknurled thumb nut. The collar 22 may be rotated about the pin as anaxis, and is held in different angular positions by a pin 24 which isarranged to engage either one of two slots 25 and 26 cut in the pin 19.The pin 24 is held in position by a plug 27 threaded into a radialopening in the collar 22, as shown best in Fig. 4, and a spring 28normally presses the pin 24 inwardly to cause it to engage the slots 25and 26. The outer end of the pin 24 is provided with a finger piece 29by means of which the pin may be drawn outwardly to disengage it fromthe slots 25 and 26, and by which the collar 22 may be rotated about itsaXis into either of the two positions indicated in Fig. 2.

The upper end of the pin 19 is provided with a reduced portion 30 overwhich a plate 31 is fitted. The plate 31 is preferably covered by a thinsheet 32 of noncorrosive metal which is not affected by contact withmeat, or other substance sliced by the machine. The inner edge of theplate 31, as shown in Fig. 1, is located as closely as possible to theouter edge of the meatsupporting table 11 so that the portion of themeat which is to form the slice eX- tends beyond the edge of the table11 and overlaps the inner edge of the plate 31. It will be seen fromFig. 5 that a portion of the plate 31 and of the cover sheet 32 isinclined upwardly, as shown at 33, in the direction of travel of thetable during a slicing operation. The object of this inclined surface isto raise the projecting portion of the meat to a level with the uppersurface of the reciprocating table at the point where the rinding knifeoperates in case there is a tendency for this projecting portion todroop downwardly.

The rinding knife proper is shown at 34 in the drawings and is clampedbetween two bars 35 and 36, the whole being riveted together, as shownin Fig. 7, to form substantially one piece. The rivet 37 for one end ofthe rinding knife is provided with a downwardly extending pin 38 whichtravels in angularly positioned groove 39 formed 7 in the plate 31 andcover sheet 32. The rivet for the opposite end of the rinding knifeconsists of a sleeve 40 which extends through an arcuate slot 41 in theplate 31 and cover sheet 32, and is connected to the upper surface ofthe collar 22 by a screw 42 which eX- tends through the opening in thecenter of the sleeve 40, and is threaded into the upper surface of thecollar 22 near the periphery thereof, as shown in Fig. 6. Thisarrangement makes it possible to project the edge of the rinding knife34 into the path of movement of the meat to be sliced by the rotation ofthe collar 22 into the position shown in Figs. 1, 2 and 3. When it isdesired to Withdraw the rinding knife 34 from operative position, it isonly necessary t rotate the finger piece 29 to the position shown inbroken lines in Fig. 2. This will move the pin 42 from the positionshown in the figure to the opposite end ofthe arcuate slot in the plate31, and the edge of the knife 34 will be correspondingly moved away fromthe edge of the meat table 11. The same rotary movement of the sleeve 22will move the pin 38 in the slot 39, and thus because of the inclinationof this slot force the other end of the knife 34 into inoperativeposition. It will thus be apparent that all that is neces sary to movethe knife 34 into and out of operative position is to pull outwardly onthe finger piece 29 to disengage the pin 24 from the slot 25 or 26, andthen while still holding the finger piece to move it about the center ofthe pin 19 to bring the knife 34 into the desired position. Uponreleasing the finger piece 29, the spring 28 will cause the pin 24 toenter one of the slots 25 or 26 and thus lock the knife 34 in theposition to which it has been moved. In order to prevent foreignmaterial from entering the slot 41 in the plate 31, a disk 45 is pivotedon a shoulder 46 formed on a screw 47 which is threaded in the upper endof the reduced portion 30 of the pin 19, and which holds the plate 31 inplace. The disk 45 is provided with a circular opening through which thesleeve 40 extends, and in which the sleeve snugly fits.

\Vhen it is desired to adjust the vertical position of the knife 34 toaccommodate it to various thicknesses of rind to be removed, or for anyother purpose, it is only necessary to turn the knurled nut 21, and thisrotation of the nut will move the collar 22 upwardly or downwardly, andthe sleeve 40 and knife 34 will be correspondingly adjusted. If it isdesired for any reason to shift the vertical position of the plate 31this may be done by loosening the split collar 17 and sliding the pin 19vertically throughthe collar. The plate 31 is provided at one end withan opening 48 through'which a guard rod, not shown, extends and holdsthe plate 31 from rotation on the pin 19.

c claim e 1. In con'ibination, a rotary member, a rinding knifeeccentrically pivoted on said member, a second pivotal support for saidrinding knife, and a threaded member for vertically adjusting saidrotary member and for holding said member in its various positions ofvertical adjustment.

2. In combination, an upright spindle, a collar mounted to slidelongitudinally along said spindle and to rotate thereabout, a rindingknife cccentrically pivoted on said collar, and a nut threaded on saidspindle for adjusting said collar along said spindle and for holdingsaid collar in its various positions of adjustment.

3. In combination, an upright spindle, a collar slidably mounted uponsaid spindle and arranged to rotate thereabout, a rinding knifeeccentrically pivoted to said collar, a catch for holding said collarfrom rotation upon said spindle, and a threaded member for adjustingsaid collar along said spindle.

4. The combination with a slicing machine, of a rinding knife therefor,and mechanism for moving said knife into and out of operative position,said mechanism comprising a single member which constitutes a. catch forholding said rinding knife'in position and also a. handle for movingsaid rinding knife into and out of operative po sition.

5. In combination, a rinding knife for slicing machines, a device forshifting said knife into various positions of adjustment, aspring-pressed catch for holding said knife in its different positionsof adjustment, and a handle connected with said catch for operating saidcatch and for shifting said knife from one position of adjustment toanother.

6. In combination, a rinding knife for slicing machines, a support forsaid knife, means for shifting said support about an upright axis tomove said knife into and outof operative position, means for adjustingsaid support vertically and for holding said support against verticalmovement during the adjustment of said knife into and out of operativeposition, and a catch for holding said knife in its operative andinoperative positions.

7. The combination with a slicing machine, of a bracket carried thereby,an up right spindle vertically adjustable in said bracket, means carriedby said spindle for supporting the edge of material to be sliced duringa slicing operation, and a rinding knife mounted on said spindle andadjust able thereon relative to said supporting means.

8. The combination with a slicing ma chine, of a bracket securedthereto, an uprightspindle carried by said bracket, a plate mounted onsaid spindleand having one edge thereof arranged to project beneath theedge of material to be sliced, a collar mounted on said spindle, arinding knife eccentrically pivoted on said collar, means for shiftingsaid collar about said spindle as an axis to move said rinding knifeinto and out of operative position, and a. threaded member for adjustingsaid rinding knife relative to said spindle and supporting plate and forholding said rinding knife in its various positions of verticaladjustment.

9. In combination, a table for supporting material to be sliced, arinding knife positioned adjacent the edge of said table, and aninclined support for guiding material into operative position relatingto said rinding knife.

10. In combination, a rinding knife, a table for supporting material tobe sliced movable relative to said rinding knife, and an inclinedsupport for guiding the portion of the material projecting beyond saidtable into position to be operated upon by said rinding knife.

In testimony whereof We have signed our names to this specification onthis 25th day of May, A. D. 1918.

AUGUST R. LUSCHKA. JOSEPH FOLK.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

